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<br /> <br /> <br /> Page 7 of 8 <br /> <br /> 403.7.3 Pool covers. Heated pools shall be equipped with a vapor retardant pool cover on or <br /> at the water surface. Pools heated to more than 90T (32°C) shall have a pool cover with a minimum <br /> insulation value of R-12. <br /> Exception: Pools deriving over 60 percent of the energy for heating from site-recovered energy or <br /> solar energy source." <br /> <br /> <br /> (13) Amending section 503.2.9. Section 503.2.9 is amended by repealing section 503.2.9 in its entirety <br /> and replaced to read as follows: <br /> <br /> "503.2.9 Mechanical systems commissioning and completion requirements. <br /> 503.2.9.1 System commissioning. Commissioning is a process that verifies and documents <br /> that the selected building systems have been designed installed, and function according to the <br /> owner's project requirements and construction documents. Drawing notes shall require <br /> commissioning and completion requirements in accordance with this section Drawing notes may <br /> refer to specifications for further requirements. Copies of all documentation shall be given to the <br /> owner. <br /> 503.2.9.1.1 Commissioning plan. A commissioning plan shall include as a minimum the <br /> following items: <br /> 1. A detailed explanation of the original owner's project requirements <br /> 2. A narrative describing the activities that will be accomplished during each phase of <br /> commissioning, including guidance on who accomplishes the activities and how they are <br /> completed, <br /> 3. Equipment and systems to be tested, including the extent of tests <br /> 4. Functions to be tested (for example calibration, economizer control etc.) <br /> 5. Conditions under which the test shall be performed (for example winter and summer <br /> design conditions, full outside air, etc.), and <br /> 6. Measurable criteria for acceptable performance. <br /> 503.2.9.1.2 Systems adiusting and balancing. All HVAC systems shall be balanced in <br /> accordance with generally accepted engineering standards. Air and water flow rates shall be <br /> measured and adiusted to deliver final flow rates within 10 percent of design rates Test and balance <br /> activities shall include as a minimum the following items: <br /> 1. Air systems balancing: Each supply air outlet and zone terminal device shall be equipped <br /> with means for air balancing in accordance with the requirements of Chapter 6 of the 2006 <br /> International Mechanical Code. InternationalCode Council Publications 4051 West <br /> Flossmoor Road Country Club Kills IL 60478-5795 Discharge dampers are prohibited on <br /> constant volume fans and variable volume fans with motors 10 hp (18.6 M and larger. Air <br /> systems shall be balanced in a manner to first minimize throttling losses then for fans with <br /> system power of greater than 1 by, fan speed shall be adjusted to meet design flo <br /> conditions. <br /> Exception: Fan with fan motors of 1 hp or less. <br /> 2. Hydronie systems balancing: Individual hydronic heating and cooling coils shall be <br /> equipped with means for balancing and pressure test connections. Hydronic systems shall be <br /> proportionately balanced in a manner to first minimize throttling losses then the pump <br /> impeller shall be trimmed or pump speed shall be adjusted to meet design flow conditions <br />